Home / 154,882.47-213,812.91-103,876.59

Finding the Fourth Proportional to 154,882.47, 213,812.91 and 103,876.59

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Solution

The fourth proportional to 154,882.47, 213,812.91 and 103,876.59 is: 143,400.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,882.47 : 213,812.91 = 103,876.59 : x
  2. Step 2: Convert to fraction form
    154,882.47/213,812.91 = 103,876.59/x
  3. Step 3: Cross multiply
    154,882.47x = 213,812.91 × 103,876.59
  4. Step 4: Simplify right side
    154,882.47x = 22,210,155,988.78
  5. Step 5: Solve for x
    x = 22,210,155,988.78/154,882.47
  6. Step 6: Final answer
    x = 143,400.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.